System Interface Unit (SIU)
MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
6-62 Freescale Semiconductor
6.3.1.12.56 Pad Configuration Register 100 (SIU_PCR100)
The SIU_PCR100 register controls the pin function, direction, and static electrical attributes of the
PCSA[4]_SOUTD_GPIO[100] pin. The PCSA[4] function is only available on the MPC5554. Although
the PCSA[4] function is not available in the MPC5553, this register enables the selection of the SOUTD
or GPIO function for the MPC5553.
Figure 6-68. PCSA[4]_SOUTD_GPIO[100] Pad Configuration Register (SIU_PCR100)
Refer to Table 6-16 for bit field definitions.
6.3.1.12.57 Pad Configuration Registers 101 (SIU_PCR101)
The SIU_PCR101 register controls the pin function, direction, and static electrical attributes of the
PCSA[5]_PCSB[3]_GPIO[101] pin. The PCSA[5] function is not available in the MPC5553 (this register
allows selection of the PCSB[3] and GPIO functions).
Figure 6-69. PCSA[5]_PCSB[3]_GPIO[101] Pad Configuration Register (SIU_PCR101)
Refer to Table 6-16 for bit field definitions.
Address: Base + 0x0108 Access: Read / write[4:7, 10:15]
0123456789101112131415
R 0000
PA
1
1
The PCSA[4] function is only available on the MPC5554; it is not available on the MPC5553. Therefore, set the PA field value
for 0b01 or 0b11 only on the MPC5554 to select PCSCA[4]. Valid MPC5553 PA settings are 0b10 for the SOUTD or 0b00 for
GPIO.
OBE
2
2
When configured as PCSA or SOUTD, the OBE bit has no effect. When configured as GPO, set the OBE bit to 1.
IBE
3
3
When configured as PCSA or SOUTD or GPO, set the IBE bit to 1 to reflect the pin state in the corresponding GPDI register.
Clear the IBE to 0 to reduce power consumption. When configured as GPI, set the IBE bit to 1.
00
ODE HYS SRC WPE WPS
W
RESET: 0000000000000011
Address: Base + 0x010A Access: Read / write[4:7, 10:15]
0123456789101112131415
R 0000
PA
1
1
The PCSA[5] function is only available on the MPC5554; it is not available on the MPC5553. Therefore, set the PA field value
for 0b01 or 0b11 only on the MPC5554. Valid MPC5553 PA settings are 0b10 for the PCSB[3] or 0b00 for GPIO.
OBE
2
2
When configured as PCS, the OBE bit has no effect. When configured as GPO, set the OBE bit to 1.
IBE
3
3
When configured as PCS or GPO, set the IBE bit to 1 to reflect the pin state in the corresponding GPDI register. Clear the IBE
to 0 to reduce power consumption. When configured as GPI, set the IBE bit to 1.
00
ODE HYS SRC WPE WPS
W
RESET: 0000000000000011
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